Viessmann PYROMAT ECO, Technical Manual

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Further information
Ash and cleaning
Natural wood without bark has a percentage of ash less than 0.5 % of
the supplied fuel mass. All information regarding cleaning work is
based on natural wood with attached bark and an ash percentage of
0.8 %. The cleaning and maintenance work for other wood fuels should
be adapted according to the quantity, the specific weight and the ash
characteristics.
Changing fuels
Frequent and intensive changes in fuel quality, e.g. bulk density, water
content, dust proportion and ash content, can require a manual adjust-
ment of the combustion system parameters.
Non-wood biomass fuels
Non-wood fuels made from biomass such as needles, leaves, cereals,
straw, husks, fruit stones, etc. are unsuitable as fuels for fault-free
operation, and are therefore not permitted. In some cases, the fuel properties (elemental composition, ash sinter-
ing point, etc.) differ considerably from those of wood. Combustion of
such fuels in a Pyromat Eco can lead to an impairment of the com-
bustion characteristics and increased stress on the fireclay lining and
the heat exchanger surfaces. Warranty claims can therefore only be
asserted when using approved fuels.
Wood fuel regulations and standards
Germany Revised first version of BImSchV dated 22.03.2010
Austria FAV dated 18.11.1997 "Ordinance for Combustion Systems" § 3.(1) 3. Solid fuels
Agreement between the Federation and the Laender in accordance with section 15a, B-VG on energy savings
Agreement between the Federation and the Laender in accordance with section 15a, B-VG on safety measures for small
combustion appliances
Switzerland Clean air regulations LRV dated 16.12.1985 (version 28.03.2000)
France NF Bois de chauffage
ÖNORM M 7133 Woodchips for energy purposes (1998)
EN 303-5 Boilers for solid fuels, table 8 "Test fuels"
EN 14961-1 Solid biofuels - fuel specifications and classes - part 1: General requirements (2010 04 01)
EN 14961-3 Solid biofuels - fuel specifications and classes - part 3: Wood briquettes for non-industrial use (2010 07 15)
EN 14961-5 Solid biofuels - fuel specifications and classes - part 5: Firewood for non-industrial use (2011 04 15)
Principles of wood combustion for generating heat
(cont.)
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PYROMAT ECO
1
5822 546 GB